September Weather in Theunissen, South Africa

Last updated: August 31, 2025

In Theunissen, South Africa, the average temperature in September hovers around 17°C (62°F). However, be prepared for a range of temperatures, with minimums dropping to -4°C (26°F) and maximums reaching a warm 33°C (92°F). During this month, expect approximately 8 mm (0.3 in) of precipitation over 3 days, coupled with an average humidity of 63%. Stay comfortable and enjoy the varied weather!

September Temperature in Theunissen

In September in Theunissen, the average temperature is 17°C (62°F), with maximums reaching up to 33°C (92°F) and minimums dipping as low as -4°C (26°F). This range offers travelers a variety of weather experiences, so it's essential to pack accordingly for both warm days and chilly nights.

September Weather in Theunissen: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Theunissen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Theunissen, September typically has an average temperature of 17°C (62°F), with highs reaching up to 33°C (92°F) and lows dropping to around -4°C (26°F).

Data source: Temperature data for Theunissen generated using information from the Copernicus Climate Change Service.

September Precipitation in Theunissen

In Theunissen in September, the precipitation amount is 8 mm (0.3 in) over the course of 3 days.

September Precipitation Trends in Theunissen

The chart displays monthly precipitation patterns in Theunissen, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Theunissen, September typically receives around 8 mm (0.3 inches) of precipitation spread over approximately 3 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

September Humidity in Theunissen

In Theunissen in September humidity is 63%. With an average temperature of 17°C (62°F), this humidity feels like a warm embrace, making outdoor activities comfortable yet slightly sticky, perfect for leisurely strolls or sightseeing, but travelers should be prepared for a mild perspiration.

September Average Humidity in Theunissen

This chart illustrates the average monthly humidity levels in Theunissen, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Theunissen is approximately 63%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Theunissen

In Theunissen in September, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Theunissen.

Maximum UV Index Levels in Theunissen for September

The chart shows the monthly maximum UV Index (UVI) for Theunissen in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Theunissen typically reaches 11, which falls under the extreme exposure category.

Data source: Theunissen September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How September Weather in Theunissen Compares to Other Months

Weather in Theunissen varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Theunissen, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Theunissen, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	23°C (73°F)	96 mm (3.8 inches)	75%	extreme
February Weather	22°C (72°F)	135 mm (5.3 inches)	74%	extreme
March Weather	20°C (69°F)	78 mm (3.1 inches)	79%	extreme
April Weather	17°C (62°F)	71 mm (2.8 inches)	83%	very high
May Weather	13°C (55°F)	10 mm (0.4 inches)	84%	high
June Weather	9°C (49°F)	4 mm (0.2 inches)	79%	moderate
July Weather	9°C (48°F)	3 mm (0.1 inches)	69%	high
August Weather	12°C (54°F)	16 mm (0.6 inches)	60%	very high
September Weather	17°C (62°F)	8 mm (0.3 inches)	63%	extreme
October Weather	19°C (67°F)	40 mm (1.6 inches)	61%	extreme
November Weather	21°C (70°F)	70 mm (2.7 inches)	67%	extreme
December Weather	22°C (73°F)	95 mm (3.8 inches)	75%	extreme